Chernichko, J. I., V. A. Kostiushyn, and S. V. Vinokurova. 2023. “The Red Data Book Waterbirds in the Coastal Wetlands of the Azov-Black Sea Region of Ukraine — the Results of the August Counts 2018 and 2021 ”. Zoodiversity 57 (2). Kyiv, Ukraine. https://doi.org/10.15407/zoo2023.02.181.